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A comment on Speeding up the JavaScript ecosystem – one library at a time. Parent comment

Re:Speeding up the JavaScript ecosystem – one library at a time by esperent on Tuesday November 29, 2022 @09:59PM (#33796474)
> Arrays must be of one type and a fixed length

If performance is critical then use a TypedArray where possible.

Your other points are spot on for high performance JS.

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Re:Speeding up the JavaScript ecosystem – one library at a time by crabmusket on Wednesday November 30, 2022 @07:29AM (#33799755)
I was messing about with some profiling and seemed to find that TypedArrays are not always faster than regular arrays carefully handled. And what's worse it seemed like a regression from node 16 (fast typed arrays) to 18 (slow typed arrays). I will have to dig up my profiles again and see if I can verify it. Posting this comment in the hope that someone who knows more than me has something to add!
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